Supporting bow



Sept. 5 1939. o. E.v UEBE'RAGANG 2,172,303.

SUPPORTING' BOW Filed Dec. 17, 1958 Uft Lua/L, 8,/

Patented Sept. 5, 1939 UNITED STATES PATENT OFFIQE SUPPORTING Bow OscarE. Uebergang, Benton, Ark. Application December 17, 193s,seria1No.246,44s

1 claim. (o1. 296-118) This invention relates to improvements in supheadof the tongue I2 when the sections are in porting bows particularlyadapted for use in supextended position. The strap I on the oppositeporting any type of arched structure such as a side of the blocks I isprovided with arched portent, canopy or trailer cover. tions forming arecess I8 to receive the head of It is the primary object of theinvention to the tongue when the sections are swung into a 5 provide abow formed of sections joined together folded position, as shown in Fig.2. by means of a releasable coupling which will In operation, thesections and 'I are joined permit folding of the sections when not inuse. together by engaging the tongue I2 carried by A further object ofthe invention resides in one of the sections in the slot I3 of the strap10 providing a device of the above-mentioned charcarried by the othersection. With the sections 10 acter which is simple and durable inconstrucextended to form the supporting bow or arch tion, reliable andeicient in use and inexpensive the head of the tongue rests in thegroove I'I and to manufacture. the stem of the tongue rests in the notchI5 in Other objects and advantages of the invention the block i4limiting the movement of the secwill be apparent during the course ofthe foltions. To fold the supporting bow or arch, the 15 lowingdescription. sections are swung outwardly and upwardly un- In theaccompanying drawing, forming a part til the head of the tongue is freeof the stop blocks of this specification and in which like numerals andthe stem is raised out of the notch I5, whereare employed to designatelike parts throughout upon the sections are turned until one section isthe same, disposed over the other and then the head of 20 Fig. 1 is afragmentary elevation of a supportthe tongue is disposed in the recessI8 which ing bow constructed in accordance with my inholds the sectionsin folded relation, as shown vention, in Fig. 2. Thus, it is seen thesupporting arch Fig. 2 is a similar View of the same showing the or bowmay be compactly folded so as to be easily sections of the bow in foldedrelation, ported from place to place and yet at all times 25 Fig. 3 is atop plan View of the coupling between the sections are securely coupledtogether. the sections of the bow, It is to'be understood that the formof my in- Fig. 4 is a side elevation of the coupling, and vention hereinshown and described is to be taken Fig. 5 is a perspective view of thecoupling with as a preferred example of the same and that the parts inseparate relation. certain changes in the shape, size, and arrange- 30In the drawing, wherein for the purpose of ilment of the parts may bemade without departlustration I have shown a preferred embodiment ingfrom the spirit of the invention or the scope of my invention, thenumeral 5 denotes the supof the subjoined claim. porting arch or bowwhich is divided at its center Having thus described my invention, Iclaim:

to form sections 6 and I joined together by a A coupling for sectionalbows comprising flat 35 coupling 8. The coupling consists of metalstraps metal straps secured to the adjoining ends` of the 9 and I0secured to the top of the adjoining ends sections of the bow, one ofsaid straps projecting of the sections 6 and 'I by screws or othersuitbeyond the end of the section and having a cenable fasteners II. AT-shaped tongue I2 extral longitudinal slot, a T-shaped tongue protendslongitudinally from the center of the end jecting longitudinally fromthe other strap adapt- 40 of the strap 9 adapted to engage in thecentral ed to engage in the slot of the rst mentioned longitudinal slotI3 formed in the end of the strap, and a cross block extending across`the end strap I0. A block I4 is secured to the underside of said firstmentioned strap transversely of the of the strap I0 at its end extendingtransversely slot, said block having a notch in its top side in of theslot I3 and a notch I5 is formed in the top register with the slotadapted to receive the 45 side of the block in register with the slot toreshank of said tongue when the sections are exceive the stem of thetongue I2 and limit the tended, said first mentioned strap havingupswinging movement of the sections 6 and 'I in wardly arched portionson opposite sides of the one direction. A pair of stop blocks I6 areseslot forming a recess to receive the head of said cured to theunderside of the strap I0 on opposite tongue when the sections are swunginto folded 50 sides of the slot I3 and in spaced relation to therelation. block I4 forming a groove I'I which receives the OSCAR E.UEBERGANG.

